| org.springframework.xml.xpath.XPathExpression
| XPathExpression | | public interface XPathExpression (Code) | | Defines the contract for a precompiled XPath expression. Concrete instances can be obtained through the
XPathExpressionFactory .
Implementations of this interface are precompiled, and thus faster, but less flexible, than the XPath expressions
used by
XPathOperations implementations.
author:
Arjen Poutsma
since:
1.0.0 |
| evaluateAsBoolean | | boolean evaluateAsBoolean(Node node) throws XPathException(Code) | | Evaluates the given expression as a boolean. Returns the boolean evaluation of the expression, or
false if it is invalid.
Parameters:
node - the starting point the result of the evaluation
throws:
XPathException - in case of XPath errors
See Also: XPath specification |
| evaluateAsNode | | Node evaluateAsNode(Node node) throws XPathException(Code) | | Evaluates the given expression as a
Node . Returns the evaluation of the expression, or null
if it is invalid.
Parameters:
node - the starting point the result of the evaluation
throws:
XPathException - in case of XPath errors
See Also: XPath specification |
| evaluateAsNodeList | | List evaluateAsNodeList(Node node) throws XPathException(Code) | | Evaluates the given expression, and returns all
Node objects that conform to it. Returns an empty list if
no result could be found.
Parameters:
node - the starting point a list of Nodes that are selected by the expression
throws:
XPathException - in case of XPath errors
See Also: XPath specification |
| evaluateAsNumber | | double evaluateAsNumber(Node node) throws XPathException(Code) | | Evaluates the given expression as a number (double). Returns the numeric evaluation of the
expression, or
Double.NaN if it is invalid.
Parameters:
node - the starting point the result of the evaluation
throws:
XPathException - in case of XPath errors
See Also: XPath specification |
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